Straight pattern version of our “500 HP Cam” ideal for Stage 2 Heads.  Makes more torque than the 413 and 290-08. TA roller rockers and valve springs recommended. 2500 -3000 stall converter recommended. Fair idle. 9.5:1 or more CR

Idle Quality:

Smooth Idle - just like stock
Good Idle - mild lump, but doesn’t impair driveability
Moderate Idle - nice performance sound
Fair Idle - heavy lump
Rough Idle - very lumpy race type idle
 

VALVE LIFT 

• STOCK 1.55 RATIO:
   IN: .508”
   EXH: .508”
• TA ROLLERS 1.60 RATIO:
   IN: .525”
   EXH: .525”

DURATION

• AT .050
   IN: 238
   EXH: 238
• ADVERTISED
   IN: 290
   EXH: 290

• LOBE CENTER: 112
• POWER RANGE: 2000-6000